Growing bored of the dusty ol’ Michael Stipe that’s been sitting on his shelf for nine months, Stephen Colbert announced last night on the Report that he’s hosting his second annual summer concert series, after last year’s StePhest Colbchella. This time around, it’s called “StePhest Colbchella ‘012: Rocktaugustfest” and the lineup features Grizzly Bear (!), the Flaming Lips, Santigold, fun., and Official Colbchella Aircraft Carrier DJ Grandmaster Flash. They’ll all be playing aboard the U.S. Intrepid in New York City on August 10th. For FREE tickets, head to Colbert’s website. You’ve certainly aroused my interests, Mr. Colbert…